The short answer
To improve focus and concentration, remove the biggest distractions (especially your phone), work on one task at a time in timed blocks of 25 to 90 minutes, decide in advance what you will work on, take real breaks away from screens, and protect the basics of sleep, movement, and food. Focus is less about willpower and more about designing your day and environment so that attention has fewer reasons to leave.
You sit down to work on something important. Five minutes later, you are checking a notification. Then you answer a message. Then you look at the news, just for a second. Then you remember something you need to buy. Half an hour later, you have done a little bit of everything and almost nothing of what you sat down to do.
If this sounds familiar, you are not alone, and you are not broken. Modern life is designed, quite deliberately in many cases, to capture your attention. Phones, apps, notifications, open-plan offices, and endless streams of information all compete for the same limited resource.
The ability to focus is not a fixed trait. It is a skill that depends heavily on your environment, your habits, and your physical state. This guide explains how attention works and gives you practical ways to concentrate better, starting today.
How attention works
Attention is your mind’s way of selecting what to process. At any moment, you are surrounded by far more information than you can handle: sounds, sights, thoughts, sensations, and memories. Attention picks a small portion of all that and brings it into focus.
Three features of attention are especially important for understanding concentration:
It is limited. You can only fully attend to a small amount of information at once. When you try to take in more, the quality of your attention drops.
It is easily captured. Certain things grab attention automatically: movement, sudden sounds, your own name, notifications, and anything new or emotionally charged. This was useful for survival, but it makes modern environments full of distractions very hard to resist.
It wanders. Even without external distractions, the mind naturally drifts. Research led by Matthew Killingsworth and Daniel Gilbert at Harvard, which sampled thousands of people’s thoughts throughout their day using a phone app, found that people’s minds were wandering in nearly half of the moments sampled. We look at this in Mind Wandering: Why It Happens and What to Do About It.
Once you understand these features, the strategy for better focus becomes clearer. You reduce what captures your attention, you give it one thing at a time, and you make it easier to return when it drifts.
The biggest enemies of focus
Your phone
For most people, the single largest source of distraction is the smartphone. Notifications interrupt you directly. But even without notifications, the habit of checking can pull you away dozens of times a day.
Some researchers have suggested that the mere presence of a phone may reduce available mental capacity. A 2017 study by Adrian Ward and colleagues found that participants performed worse on certain cognitive tests when their phones were on the desk than when the phones were in another room, even when the phones were turned face down and silent. Later attempts to replicate this have produced mixed results, so the size of the effect is uncertain. But many people find, in practice, that putting their phone out of sight makes a noticeable difference.
Multitasking
Many people believe they are good at multitasking. In reality, for most tasks that require thought, the brain does not do two things at once. It switches between them, and each switch has a cost.
Research on task switching, including studies by Joshua Rubinstein, David Meyer, and Jeffrey Evans, has shown that switching between tasks takes extra time and leads to more errors than completing them one after another. The costs may be small for each individual switch, but they add up across a day full of interruptions.
There is also a less obvious cost. When you switch away from a task before finishing it, part of your attention stays with it. The researcher Sophie Leroy called this “attention residue,” and it can lower your performance on the next task. We explain it fully in Attention Residue: The Hidden Cost of Switching Tasks.
Interruptions
Interruptions from other people, messages, and meetings break concentration and make it hard to get back into deep work. Researchers who study attention at work, including Gloria Mark at the University of California, Irvine, have documented how frequently office workers switch between activities and how long it can take to return to an interrupted task. Even short interruptions can disrupt the flow of complex work.
Mental clutter
Sometimes the distraction is internal. Unfinished tasks, undecided choices, worries, and loose ideas compete for your attention. When your head is full, concentrating on one thing becomes much harder. We cover this in How to Clear Your Mind of Mental Clutter.
Twelve ways to improve your focus
1. Put your phone out of sight
This is the most effective single change many people can make. During focused work, put your phone in another room, in a drawer, or in a bag. Turn off non-essential notifications permanently. If you need your phone for work, use focus modes that silence everything except what you truly need.
2. Do one thing at a time
Choose one task and work on it until you reach a natural stopping point. Close everything that is not related to it: tabs, apps, documents. If something else comes to mind, write it down on a notepad and return to your task.
Working on one task at a time is sometimes called monotasking. It sounds simple, but for many people it is a significant change. Read more in Monotasking: Why Doing One Thing at a Time Works Better.
3. Decide what you will work on before you start
A lot of lost focus comes from not knowing exactly what to do next. When the task is vague, the mind looks for something easier. Before each work session, write down one specific outcome: “Draft the introduction of the report” rather than “work on the report.”
The best time to plan is the evening before or first thing in the morning. That way, when you sit down, you can start immediately without spending energy deciding.
4. Work in focused blocks
Instead of trying to concentrate all day, work in defined blocks of time with breaks in between. A popular method is the Pomodoro Technique, created by Francesco Cirillo: twenty-five minutes of focused work followed by a five-minute break, with a longer break after four rounds.
Twenty-five minutes is a starting point, not a rule. Many people find that blocks of fifty, sixty, or ninety minutes work better for deep tasks once they are used to concentrating. Experiment to find your rhythm. The key is that during a block, you do only one thing.
5. Protect your best hours
Most people have certain times of day when they concentrate best. For many, it is the morning, but not for everyone. Notice when your focus is naturally strongest, and protect that time for your most demanding work. Use your lower-energy times for meetings, emails, and routine tasks.
6. Batch shallow work
Emails, messages, and small admin tasks are necessary, but they fragment attention when they are scattered throughout the day. Group them into set times. For example, check and reply to messages at eleven and at four, rather than continuously.
The writer and computer scientist Cal Newport, in his book Deep Work, distinguishes between “deep work,” which requires sustained concentration, and “shallow work,” which does not. Separating the two and giving deep work protected time is one of the most effective ways to get more done with less stress.
7. Design your environment
Your surroundings shape your attention more than you might think. A cluttered desk, a television in the background, or a busy space with constant movement all compete for attention.
Make your environment support focus:
- Keep your workspace tidy, with only what you need for the current task.
- Use noise-cancelling headphones or quiet background sound if you work in a noisy place.
- If possible, have a specific place where you only do focused work, so your brain links that place with concentration.
8. Take real breaks
Breaks are not a waste of time. They are part of what makes sustained focus possible. But not all breaks are equal. Scrolling social media during a break keeps your mind busy and can leave you more tired.
Better breaks involve movement, rest for your eyes, or time in nature. Attention restoration theory, developed by the psychologists Rachel and Stephen Kaplan, suggests that natural environments help restore the capacity for directed attention. Even a short walk outside or looking at trees through a window may help.
9. Sleep enough
Sleep has a powerful effect on attention. Research consistently shows that sleep deprivation impairs concentration, slows reaction times, and makes it harder to sustain attention. No focus technique can fully compensate for a tired brain.
If your concentration is poor, look at your sleep first. Regular sleep and wake times, a calm wind-down routine, and enough hours in bed make a significant difference.
10. Move your body
Regular physical activity supports brain health and is associated with better attention and executive function. Some studies have also found short-term improvements in focus after a single session of moderate exercise. A brisk walk before a demanding task may help you think more clearly.
11. Eat and drink sensibly
Hunger and dehydration can affect concentration. Large, heavy meals can make you sluggish. You do not need a special diet for focus, but regular meals, water, and moderate caffeine, if it suits you, can help keep your attention stable.
12. Train your attention
Concentration is a skill that improves with practice. Each time you notice your mind has wandered and gently bring it back, you are training attention.
Mindfulness meditation is one structured way to practice this. Simply sitting for a few minutes, focusing on your breathing, and returning your attention each time it drifts can strengthen your ability to notice distraction. Reading long texts without interruption, listening carefully in conversations, and working on a single task for increasing periods are also forms of training.
Building a focused day
Here is an example of how these ideas can fit together:
- Evening before: Write down the one or two most important tasks for tomorrow.
- Morning: Phone in another room. Start with a focused block on your most important task, with a single clear outcome.
- Mid-morning: A short walk or break away from screens.
- Late morning: Second focused block, then check messages and handle small tasks.
- Afternoon: Meetings, calls, and shallow work, batched together.
- Late afternoon: One more focused block if energy allows, or planning for tomorrow.
- Evening: Wind down, protect sleep.
You do not need to follow this exactly. The principle is to give your most important work your best attention, and to stop scattering your focus across everything at once.
When focus problems might need attention
Everyone has days when concentrating is hard. But if you have struggled with attention for most of your life, if it affects your work, relationships, or daily functioning, or if it comes with restlessness, impulsivity, low mood, or anxiety, it may be worth speaking with a doctor or a mental health professional. Attention difficulties can be part of conditions such as ADHD, depression, or anxiety, and they can also be affected by sleep disorders, medications, and other health issues. A professional can help you understand what is going on.
Frequently asked questions
How can I improve my focus quickly?
Put your phone out of sight, close everything not related to your current task, write down one specific outcome for the next block of work, and set a timer for twenty-five to fifty minutes. These changes can make a noticeable difference in the same day.
Why can’t I concentrate?
Common reasons include constant digital distractions, multitasking, mental clutter, lack of sleep, stress, and unclear tasks. If difficulty concentrating is long-standing or severe, it is worth speaking with a professional.
Does multitasking reduce focus?
Yes, for tasks that require thinking. The brain switches between tasks rather than doing them at the same time, and each switch costs time and accuracy. Working on one task at a time is generally more efficient.
How long can a person concentrate?
It varies by person, task, and conditions. Many people work well in blocks of twenty-five to ninety minutes followed by a break. With practice and a supportive environment, the length of focused periods can increase.
